An ammeter and a voltmeter of resistance 
are connected in series to an electric cell of negligible internal resistance. Their readings are 
and 
respectively. If another resistance 
is connected in parallel with the voltmeter
a)
Both 
and 
will increase
b)
Both 
and 
will decrease
c)
will decrease and 
will increase
d)
will increase and 
will decrease
An ammeter and a voltmeter of resistance are connected in series to an electric cell of negligible internal resistance. Their readings are and respectively. If another resistance is connected in parallel with the voltmeter
a)
Both and will increase
b)
Both and will decrease
c)
will decrease and will increase
d)
will increase and will decrease
Question ID - 150470 | SaraNextGen Top Answer
An ammeter and a voltmeter of resistance are connected in series to an electric cell of negligible internal resistance. Their readings are and respectively. If another resistance is connected in parallel with the voltmeter
a)
Both and will increase
b)
Both and will decrease
c)
will decrease and will increase
d)
will increase and will decrease
|
An ammeter and a voltmeter of resistance |
|||
|
a) |
Both |
b) |
Both |
|
c) |
|
d) |
|
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(d) After connecting a resistance |
in parallel with voltmeter its effective resistance decreases. Hence less voltage appears across it 
will decreases. Since overall resistance decreases so more current will flow 
will increase